157
FNCA52 TJSJ 251930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST SAT JUL 25 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-260800-
SOUTHEAST COASTAL PLAINS-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 40 20
TEMP (24H TREND) 75 (-2) 90 (0) 74 93
RH % (24H TREND) 89 (+3) 55 (-5) 90 49
WIND 20FT/EARLY(MPH) E 14 E 17 E 14 E 13
WIND 20FT/LATE(MPH) NE 10 E 21 NE 10 SE 14
MIXING HGT(FT-AGL/MSL) 5450 4840
TRANSPORT WND (MPH) E 18 SE 13
VENT RATE (KT-FT) 87200 53240
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-260800-
SOUTHERN HILLS-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 40 50 30 50
TEMP (24H TREND) 71 (-3) 88 (+2) 70 89
RH % (24H TREND) 97 (+6) 61 (-7) 97 57
WIND 20FT/EARLY(MPH) E 13 E 13 E 11 E 10
WIND 20FT/LATE(MPH) NE 12 E 16 E 9 SE 11
MIXING HGT(FT-AGL/MSL) 6360 5790
TRANSPORT WND (MPH) E 16 E 12
VENT RATE (KT-FT) 89040 57900
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-260800-
NORTH COASTAL PLAINS-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 50 20 60
TEMP (24H TREND) 75 (-2) 90 (+1) 73 93
RH % (24H TREND) 99 (+6) 66 (-4) 98 59
WIND 20FT/EARLY(MPH) E 20 E 16 E 17 E 12
WIND 20FT/LATE(MPH) E 13 E 21 E 9 E 16
MIXING HGT(FT-AGL/MSL) 4990 5050
TRANSPORT WND (MPH) E 18 E 12
VENT RATE (KT-FT) 79840 50500
DISPERSION 5 5
DSI 6 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-260800-
NORTHERN HILLS-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 60 10 70
TEMP (24H TREND) 72 (-2) 88 (0) 71 91
RH % (24H TREND) 99 (+3) 67 (-3) 99 62
WIND 20FT/EARLY(MPH) E 18 E 14 E 13 E 10
WIND 20FT/LATE(MPH) E 11 E 18 E 6 E 13
MIXING HGT(FT-AGL/MSL) 6180 6190
TRANSPORT WND (MPH) E 15 E 9
VENT RATE (KT-FT) 80340 49520
DISPERSION 5 5
DSI 5 6 3 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-260800-
WEST COAST-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 20 50 10 60
TEMP (24H TREND) 74 (-1) 91 (+1) 73 94
RH % (24H TREND) 100 (+6) 62 (-4) 100 56
WIND 20FT/EARLY(MPH) E 12 E 12 E 11 E 11
WIND 20FT/LATE(MPH) E 11 SE 14 E 9 E 12
MIXING HGT(FT-AGL/MSL) 4300 4550
TRANSPORT WND (MPH) SE 8 SE 8
VENT RATE (KT-FT) 30100 31850
DISPERSION 5 5
DSI 3 6 3 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-260800-
EASTERN INTERIOR-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 50 50 50
TEMP (24H TREND) 73 (-3) 89 (+2) 72 92
RH % (24H TREND) 98 (+4) 63 (-6) 98 57
WIND 20FT/EARLY(MPH) E 13 E 13 E 12 E 10
WIND 20FT/LATE(MPH) E 13 E 14 E 11 E 13
MIXING HGT(FT-AGL/MSL) 7130 6710
TRANSPORT WND (MPH) E 17 SE 12
VENT RATE (KT-FT) 106950 67100
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-260800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 50 50 50
TEMP (24H TREND) 70 (-3) 84 (+3) 69 86
RH % (24H TREND) 100 (+4) 71 (-13) 100 65
WIND 20FT/EARLY(MPH) E 11 E 12 E 10 E 9
WIND 20FT/LATE(MPH) E 10 E 12 E 8 E 11
MIXING HGT(FT-AGL/MSL) 4170 4590
TRANSPORT WND (MPH) E 17 SE 13
VENT RATE (KT-FT) 62550 50490
DISPERSION 5 5
DSI 6 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-260800-
CENTRAL MOUNTAIN RANGE-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 20 70 10 70
TEMP (24H TREND) 69 (-3) 87 (+3) 68 89
RH % (24H TREND) 100 (+5) 69 (-7) 100 65
WIND 20FT/EARLY(MPH) E 11 E 10 E 9 E 8
WIND 20FT/LATE(MPH) E 9 E 12 E 5 E 9
MIXING HGT(FT-AGL/MSL) 8150 7210
TRANSPORT WND (MPH) E 12 SE 8
VENT RATE (KT-FT) 81500 50470
DISPERSION 5 5
DSI 2 6 2 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-260800-
CAYEY MOUNTAIN RANGE-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 50 30
TEMP (24H TREND) 71 (-2) 84 (+1) 70 85
RH % (24H TREND) 100 (+2) 71 (-7) 100 66
WIND 20FT/EARLY(MPH) E 11 E 12 E 10 E 9
WIND 20FT/LATE(MPH) E 9 E 12 E 8 E 10
MIXING HGT(FT-AGL/MSL) 5460 5470
TRANSPORT WND (MPH) E 18 SE 13
VENT RATE (KT-FT) 87360 60170
DISPERSION 5 5
DSI 5 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-260800-
VIEQUES-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 50 50
TEMP (24H TREND) 79 (-1) 89 (+1) 77 91
RH % (24H TREND) 91 (+2) 65 (-5) 92 58
WIND 20FT/EARLY(MPH) E 17 E 16 E 14 E 11
WIND 20FT/LATE(MPH) E 17 E 16 E 13 E 10
MIXING HGT(FT-AGL/MSL) 2740 3090
TRANSPORT WND (MPH) E 20 SE 12
VENT RATE (KT-FT) 46580 30900
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-260800-
CULEBRA-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 50 50
TEMP (24H TREND) 78 (-3) 89 (+1) 77 93
RH % (24H TREND) 92 (+4) 63 (-9) 93 58
WIND 20FT/EARLY(MPH) E 17 E 16 E 14 E 11
WIND 20FT/LATE(MPH) E 17 E 16 E 13 E 11
MIXING HGT(FT-AGL/MSL) 2760 2970
TRANSPORT WND (MPH) E 18 SE 14
VENT RATE (KT-FT) 44160 35640
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-260800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 10 30
TEMP (24H TREND) 75 (-2) 90 (0) 74 94
RH % (24H TREND) 94 (+9) 59 (-5) 94 51
WIND 20FT/EARLY(MPH) E 17 E 17 E 14 E 14
WIND 20FT/LATE(MPH) E 11 SE 21 E 12 SE 16
MIXING HGT(FT-AGL/MSL) 4580 4680
TRANSPORT WND (MPH) E 14 E 14
VENT RATE (KT-FT) 54960 56160
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-260800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 50 30
TEMP (24H TREND) 78 (-2) 87 (+1) 76 90
RH % (24H TREND) 94 (+6) 67 (-7) 94 61
WIND 20FT/EARLY(MPH) E 17 E 17 E 14 E 11
WIND 20FT/LATE(MPH) E 17 E 16 E 14 E 12
MIXING HGT(FT-AGL/MSL) 2680 2840
TRANSPORT WND (MPH) E 18 E 14
VENT RATE (KT-FT) 42880 34080
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-260800-
ST CROIX-
330 PM AST SAT JUL 25 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 50 20
TEMP (24H TREND) 77 (-3) 87 (0) 77 91
RH % (24H TREND) 94 (+3) 67 (-6) 94 60
WIND 20FT/EARLY(MPH) E 17 E 16 E 13 E 10
WIND 20FT/LATE(MPH) E 16 E 16 E 12 E 11
MIXING HGT(FT-AGL/MSL) 4400 4690
TRANSPORT WND (MPH) E 21 SE 12
VENT RATE (KT-FT) 79200 46900
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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